Cirrus Logic CS42416 - Manual (Page 27)

DS602F2 27
CS42416
4.5.2 Serial Audio Interface Formats
The DAC_SP and ADC_SP digital audio serial ports support five formats with varying bit depths from 16
to 24 as shown in
Figures 11 to 15 . These formats are selected using the configuration bits in the registers,
“Functional Mode (address 03h)” on page 43 and “Interface Formats (address 04h)” on page 45 . For the
diagrams below, Single-Speed Mode is equivalent to Fs = 32, 44.1, 48 kHz; Double-Speed Mode is for
Fs = 64, 88.2, 96 kHz; and Quad-Speed Mode is for Fs = 176.4, 196 kHz.
Left Channel
R ight C hannel
6 5 4 3 2 1 0 9 8 7 15 1 4 13 12 11 10 6 5 4 3 2 1 0 9 8 7 15 14 13 12 11 10
DAC_SDINx
ADC_SDOUT
DAC_LRCK
ADC_LRCK
DAC_SCLK
ADC_SCLK
Figure 11. Right-Justified Serial Audio Formats
Right-Justified Mode, Data Valid on Rising Edge of SCLK
Bits/Sample
SCLK Rate(s) Notes
Master Slave
16
64 Fs 48, 64, 128 Fs Single-Speed Mode
64 Fs 64 Fs Double-Speed Mode
64 Fs 64 Fs Quad-Speed Mode
24
64, 128, 256 Fs 64, 128 Fs Single-Speed Mode
64 Fs 64 Fs Double-Speed Mode
64 Fs 64 Fs Quad-Speed Mode